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Finding the Fourth Proportional to 481,727.16, 664,409.25 and 328,888.56

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Solution

The fourth proportional to 481,727.16, 664,409.25 and 328,888.56 is: 453,610.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,727.16 : 664,409.25 = 328,888.56 : x
  2. Step 2: Convert to fraction form
    481,727.16/664,409.25 = 328,888.56/x
  3. Step 3: Cross multiply
    481,727.16x = 664,409.25 × 328,888.56
  4. Step 4: Simplify right side
    481,727.16x = 218,516,601,483.18
  5. Step 5: Solve for x
    x = 218,516,601,483.18/481,727.16
  6. Step 6: Final answer
    x = 453,610.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.